[ JAVA ] Launch new activity on button click

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Step 1 :

• Create New Project With EmptyActivity

Step 2 :

• Create second activityAnd Button

Step 3 :

• Add button to activity_main.xml

<Button
    android:id="@+id/button1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/btn"
    android:onClick="buttonClickFunction" />

•  Add following code to MainActivity.java

public void buttonClickFunction(View v)
{
            Intent intent = new Intent(getApplicationContext(), Your_Next_Activity.class);
            startActivity(intent);
}

Step 4 : 

• Run Your App